Where have you seen the nameplate located on other samples? Could it have been removed at some point in the past from your sample?

Regarding the lens and shutter, maybe some of the more knowledgable posters on those topics will chime in. The lens specs themelves appear to match. But I don't know if an Ilex shutter and the term "Universal shutter" are describing the same or different shutter types.

Ken

"They are the proof that something was there and no longer is. Like a stain. And the stillness of them is boggling. You can turn away but when you come back they’ll still be there looking at you."

— Diane Arbus, March 15, 1971, in response to a request for a brief statement about photographs